Espresso machine



FIG. 1 is a front perspective view of the espresso machine showing ournew design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof.

The ornamental design for an espresso machine, as shown and described.